Fsc part 2 online preparation for chemistry chapter 3 (group IIIA and Group IVA Elements)

Online Short Questions For Chapter 3 "12th Class Chemistry Chapter 3 Short Questions Preparation "

Try The Short Questions For 12th Class Chemistry Chapter 3 Short Questions Preparation

  • Total Questions10

  • Available Sets5

Start Test Download PDF

Chemistry - 12th Class Chemistry Chapter 3 Short Questions Preparation

Question # 1

Write any four uses of borax.

  • Ans 1: i) It is used to prepare borate glass,which is heat resistant.
  • Ans 2: ii) It is used in softening of water.
  • Ans 3: iii) It is used in metallurgical operations.
  • Ans 4: iv) It is used as a flux in welding and in metallurgy.
Submit

Prepare Complete Set Wise Questions For Chapter 3 "12th Class Chemistry Chapter 3 Short Questions Preparation "

12th Class Chemistry Chapter 3 Short Questions Preparation - Set 1

Question # 1

Write any four uses of borax.

  • Ans 1: i) It is used to prepare borate glass,which is heat resistant.
  • Ans 2: ii) It is used in softening of water.
  • Ans 3: iii) It is used in metallurgical operations.
  • Ans 4: iv) It is used as a flux in welding and in metallurgy.
Submit

12th Class Chemistry Chapter 3 Short Questions Preparation - Set 2

Question # 1

Boron differs from its family members,Discuss?

  • Ans 1:
    1. Boron is only element in group IIIA which is non metallic in behaviour.
    2. Its is the only element with less tha four electron in the outermost shell which is not a metal.
    3. One of the outstanding feature of the chemistry of boron is its ability to form molecular addition compounds.
Submit

12th Class Chemistry Chapter 3 Short Questions Preparation - Set 3

Question # 1

What is the action of an aqueous solution of Borax on litmus.

  • Ans 1: Aqueous solution of borax is alkaline in nature due to hydrolysis.It will turn red litmus to blue.
    Na2B4O7+ 7H2O------>2NaOH + 4H3BO3
    Borax Strong alkali Weak acid
Submit

12th Class Chemistry Chapter 3 Short Questions Preparation - Set 4

Question # 1

How is borax converted into boric acid vice versa?

  • Ans 1: A hot concentrated solution of borax is treated with a calculated quantity of concentrated H2SO4.On cooling,crystals of boric acid formed separated out.
    Na2B4O7 +H2SO4+5H2O------>Na2SO4+ 4H3BO3
    Borax Boric acid
Submit

12th Class Chemistry Chapter 3 Short Questions Preparation - Set 5

Question # 1

Write four uses of Sodium Silicate?

  • Ans 1: i) It is used as filler for soap in soap industry.
  • Ans 2: ii) It is used in textile as a fire proof.
  • Ans 3: ii) It is used in textile as a fire proof.
  • Ans 4: iii) It is used as furniture polish
  • Ans 5: iv) It is used in calico printing.
Submit

ic-science-white
Chemistry
3rd Chapter

12th Class Chemistry Chapter 3 Preparation

Here you can prepare 12th Class Chemistry Chapter 3 (group IIIA and Group IVA Elements). Click the button for 100% free full practice Preparation.

Start Chapter 3 Preparation

Is this page helpful?